Improvement in handsaws



UNITED STATES HENRY DISSTON AND CHARLES T. SHOEMAKER, OF PHILADELPHIA, PENN-A PATENT EEIGE.

SYLVANIA, lASSIGrNORS TO HENRY DISSTON, HAMILTON DISSTON, AND ALBERT H. DISSTON, OF SAME PLACE. l

IMPROVEMENT IN HANDSAWS.

Specification forming part of Letters Patent No. 181,422, dated August 22, 1876 application filed l April 29,1876.

'in which- Figure l'illustrates our invention as applied to a back-saw having a handle partly of metal and partly of wood; Fig. 2,' a transverse section on the line l 2. Fig. 3 shows our invention applied to a back-saw with the ordinary wooden handle 5 Fig. 4, a transverse section on the line 3 4, and Fig. 5 a modification of our invention. v`

A represents the blade oftlle saw, t0 which the back D is clamped in the usual manner. A clamp, m, embraces this back D and apart of the blade, as best observed in'Figs'. 2 and 4, this clamp being so secured by a screw, n, that the blade, back, and handleare rigidly connected together.

When this clamp m is applied to the ordinary back-saw, as seen in Fig. 3, the Wooden handle maybe recessed to receive the said clamp; or, if desired, the latter may be secured to the blade and back independently of the handle.

-full lines, Fig. l; but it may be formed of a separate piece, as'shown by dotted lilies.

Instead ot' Vmaking the clamp of one bent piece of' metal, it may be made ot' two pieces riveted to the back and blade, as shown in Fig. 5.

We claim as our inventionl. In a back-saw, the combination of the .blade A and back B with clamp m, by which the said back and blade are secured together, substantially as described.

2. The combination oi' the blade, back, and

handle -of a handsaw with a clamp, m, forming part of the handle, substantially as shown and described.

In testimony whereof we have signed our namesto this specification in the presence of two subscribing Witnesses.

HENRY K DISSTON. C. T. SHOEMAKER.

Witnesses:

A. H. SHOEMAKER, GEO. S. GANDY. 

